Document Detail

The effect of restorative materials on the wear of human enamel.
MedLine Citation:
PMID:  7932268     Owner:  NLM     Status:  MEDLINE    
The wear of human dental enamel against amalgam, Concise composite, SR-Isosit Inlay/Onlay composite, Vitadur-N glazed porcelain, unglazed IPS Empress ceramic, and enamel (control) was investigated by use of a modified stress cycling machine. Testing was carried out in water and in citric acid (pH 4) and the enamel-material couples were subjected to 25,000 cycles of wear with a maximum load of 40 N. Tooth profile reduction was measured at baseline and at 5000 cyclic intervals with a computer image analysis program. The depth of the wear scars on material specimens was analyzed with a profilometer. All materials produced increased enamel wear in acid. Vitadur-N glazed porcelain was found to be the most destructive to human dental enamel, and this was closely followed by Empress and enamel.
D K Ratledge; B G Smith; R F Wilson
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of prosthetic dentistry     Volume:  72     ISSN:  0022-3913     ISO Abbreviation:  J Prosthet Dent     Publication Date:  1994 Aug 
Date Detail:
Created Date:  1994-11-16     Completed Date:  1994-11-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376364     Medline TA:  J Prosthet Dent     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  194-203     Citation Subset:  D; IM    
Department of Conservative Dental Surgery, UMDS Guy's Dental School, London, England.
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MeSH Terms
Acrylic Resins / adverse effects
Aluminum Oxide / adverse effects
Aluminum Silicates*
Bisphenol A-Glycidyl Methacrylate / adverse effects
Citrates / chemistry
Citric Acid
Composite Resins / adverse effects*
Dental Amalgam / adverse effects*
Dental Enamel / physiopathology*
Dental Porcelain / adverse effects*
Dental Restoration, Permanent / adverse effects
Dental Stress Analysis
Hydrogen-Ion Concentration
Materials Testing
Polyurethanes / adverse effects
Surface Properties
Tooth Abrasion / etiology*
Reg. No./Substance:
0/Acrylic Resins; 0/Aluminum Silicates; 0/Citrates; 0/Composite Dental Resin; 0/Composite Resins; 0/IPS-Empress ceramic; 0/Polyurethanes; 12001-21-7/Dental Porcelain; 1344-28-1/Aluminum Oxide; 1565-94-2/Bisphenol A-Glycidyl Methacrylate; 65099-12-9/Isosit; 66676-65-1/Vitadur N; 77-92-9/Citric Acid; 8049-85-2/Dental Amalgam

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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